http://www.perfectgonzo.com has pretty high quality blog style feeds.
Feature List:
* Fresh high quality, keyword rich, 50-400 word review style posts written by a human!
* Text "morphing" for duplicate prevention (SEO)
* Create feeds by niche or combine niches for incredible micro-niching
* Visual randomization by changing the location of the post's elements
* Enable/Disable posts elements (date, models, logo, images & more)
* Customizable high quality content images (size adjustable, amount, random) to be featured in each post
* Prefill feeds with X amount of posts
* Embedded Flash trailers available for each post
* Campaign tracking
* Daily feed updates from our database of thousands of posts
* Valid XML/RSS with Feedvalidator/WordPress (WP-o-matic/FeedWP)
Demo:
http://pg123.xlogz.com
http://tester123.xlogz.com